Breaking News Emails

Sen. Bernie Sanders, I-Vt., said on Thursday that "if" he decides to run for president again in 2020, he knows the issues he'll campaign on.

Addressing speculation that he could enter the wide-open Democratic field, Sanders, 77, told NBC News' Andrea Mitchell that he would "make that decision when I think it's appropriate."

"If, and that is an if, I do decide to run, we're going to be taking on the pharmaceutical industry and the insurance industry, and Wall Street. And all of the powerful special interests who now control much of what goes on in Congress," he said.

He also said that deciding to run for president was no easy decision, and he needed to determine what kind of grassroots support might exist for a potential bid.

When asked by Mitchell whether he thought there might be too many Democratic hopefuls in the mix to effectively challenge President Donald Trump, Sanders said the American people will decide who will do the best job based on issues.

"We're going to talk about the burning issues facing the American people, so that the American people can then determine which candidate, Republican, Democrat, whatever, is addressing those issues,” Sanders said.

Sen. Chris Murphy, D-Conn., said on Thursday that he believes the resolution points Congress to reevaluate the U.S. relationship with Saudi Arabia.

"The reason we’d been working with them on Yemen is because we believed them when they told us that they weren't intentionally hitting water treatment facilities and schools and cholera medical hospitals," Murphy told NBC News' Hallie Jackson. "And so I think that we need to re-evaluate the whole relationship, which is really what this resolution points us toward and why we have bipartisan support for it."